diff --git a/.github/workflows/html-macos.yml b/.github/workflows/html-macos.yml
index 429b3332..f48eed63 100644
--- a/.github/workflows/html-macos.yml
+++ b/.github/workflows/html-macos.yml
@@ -9,7 +9,7 @@ jobs:
     runs-on: macos-latest
     steps:
     - name: Clone repo
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
       with:
         fetch-depth: 0
     - name: Install pandoc
diff --git a/.github/workflows/linkcheck.yml b/.github/workflows/linkcheck.yml
index b4045f77..664d67fa 100644
--- a/.github/workflows/linkcheck.yml
+++ b/.github/workflows/linkcheck.yml
@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Clone repo
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
       with:
         fetch-depth: 0
     - name: Install pandoc
diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index 5129983f..261d184b 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -5,7 +5,7 @@ jobs:
     name: Build distribution
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
     - name: Set up Python
       uses: actions/setup-python@v5
       with:
diff --git a/.github/workflows/version-matrix.yml b/.github/workflows/version-matrix.yml
index 69dbc1c3..e8f0a6c9 100644
--- a/.github/workflows/version-matrix.yml
+++ b/.github/workflows/version-matrix.yml
@@ -43,7 +43,7 @@ jobs:
     env: ${{ matrix.env || fromJSON('{}') }}
     steps:
     - name: Clone repo
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
       with:
         fetch-depth: 0
     - name: Install apt packages